10" 600W RMS 4-Ohm DVC Shallow Subwoofer Sundown Audio SLD Series / SLD-10-D4

Black Aluminum 2.5" voice coil former for superior heat dissipation High Temperature 4-Layer copper voice coil wire Stitched-On "Mini-XL" Tinsel Leads to prevent fatigue and failure Solid Pole with high velocity vent channels machined around the OD 10" 600W RMS 4-Ohm DVC Shallow Subwoofer Sundown Audio SLD Series / SLD-10-D4 This listing includes: (1) Sundown Audio SLD-10 D4 10" 600 Watt Dual 4 Ohm Shallow Subwoofer Description: The Sundown SLD series can be considered a "re-boot" of the SD-2 line from 2011. The SD-2 was essentially a "shallow SA v1" by design – meaning it shared the cone, surround, and spider with the SA but with a shorter motor with a shorter coil. The SD series went another route starting with the 3rd generation (SD-3) – tilting more towards SQ and sealed enclosures (this remains true for the SD-4 series as well). Due to popular demand we created the SLD series to add a heavily abuse tolerant "shallow" that likes ported boxes back into the line-up! Much like the current SD-4 series we utilized solid pole-piece so the SLD can also be mounted directly against the rear enclosure wall to reduce net depth requirements. Compared to the old SD-2 we have introduced numerous important upgrades: pole-piece channels for reduced air noise & increased cooling, top-plate "slits" for better cooling and less distortion, and a magnet ID shorting ring. In terms of long-term reliability we have also bolted down the spider, bolted the motor together, bolted on the aluminum pole cap, and added "mini-XL" lead wires thus ensuring many years of flawless service. The bottom line is if you need a relatively shallow woofer that will take a beating then the SLD is, hands-down, the woofer for you from our line. If you are looking for more SQ then look toward the SD-4 series. Features: RMS 600 watts Black Aluminum 2.5" voice coil for superior heat dissipation High-temperature 4-layer copper voice coil wire Stitched-on "Mini-XL" tinsel leads to prevent fatigue and failure Solid pole-piece and multi-vent magnetic gap Dual-magnet design for smooth acoustic response Custom tooled cone shape for reduced mechanical noise over high excursion Bolt-through motor design to ensure maximum longevity and ruggedness Specifications: RE (Ohms): 6.85 FS (Hz): 46.817 VAS (L): 12.091 Qes: 0.547 Qms: 2.246 Qts: 0.440 BL (NA): 24.492 Mms (Grams): 162.818 Cms (uM/N): 70.979 Sens (dB @ 1w/1m): 85.4 Enclosure Specifications: Sealed Enclosure: 0.5 cu ft Ported Enclosure: 1.0 cu ft Recommended Tuning: 35Hz Recommended Port Area: 15 sq in Depth: 4.9" Outside Diameter: 10.5" Cut-Out: 9.25" Subwoofer Dimensions: Overall depth: 6.01" Mounting depth: 4.94" Overall diameter: 10.4" Cutout diameter: 9.28"